Please use this identifier to cite or link to this item: https://scholarbank.nus.edu.sg/handle/10635/168673
DC FieldValue
dc.titleAnatase TiO2-A Model System for Large Polaron Transport
dc.contributor.authorYan, Bixing
dc.contributor.authorWan, Dongyang
dc.contributor.authorChi, Xiao
dc.contributor.authorLi, Changjian
dc.contributor.authorMotapothula, Mallikarjuna Rao
dc.contributor.authorHooda, Sonu
dc.contributor.authorYang, Ping
dc.contributor.authorHuang, Zhen
dc.contributor.authorZeng, Shengwei
dc.contributor.authorRamesh, Akash Gadekar
dc.contributor.authorPennycook, Stephen John
dc.contributor.authorRusydi, Andrivo
dc.contributor.authorAriando
dc.contributor.authorMartin, Jens
dc.contributor.authorVenkatesan, Thirumalai
dc.date.accessioned2020-05-29T06:30:20Z
dc.date.available2020-05-29T06:30:20Z
dc.date.issued2018-10-17
dc.identifier.citationYan, Bixing, Wan, Dongyang, Chi, Xiao, Li, Changjian, Motapothula, Mallikarjuna Rao, Hooda, Sonu, Yang, Ping, Huang, Zhen, Zeng, Shengwei, Ramesh, Akash Gadekar, Pennycook, Stephen John, Rusydi, Andrivo, Ariando, Martin, Jens, Venkatesan, Thirumalai (2018-10-17). Anatase TiO2-A Model System for Large Polaron Transport. ACS APPLIED MATERIALS & INTERFACES 10 (44) : 38201 - 38208. ScholarBank@NUS Repository.
dc.identifier.issn19448244
dc.identifier.urihttps://scholarbank.nus.edu.sg/handle/10635/168673
dc.description.abstractLarge polarons have been of significant recent technological interest as they screen and protect electrons from point-scattering centers. Anatase TiO 2 is a model system for studying large polarons as they can be studied systematically over a wide range of temperature and carrier density. The electronic and magneto transport properties of reduced anatase TiO 2 epitaxial thin films are analyzed considering various polaronic effects. Unexpectedly, with increasing carrier concentration, the mobility increases, which rarely happens in common metallic systems. We find that the screening of the electron-phonon (e-ph) coupling by excess carriers is necessary to explain this unusual dependence. We also find that the magnetoresistance could be decomposed into a linear and a quadratic component, separately characterizing the carrier transport and trapping as a function of temperature, respectively. The various transport behaviors could be organized into a single phase diagram, which clarifies the evolution of large polaron in this material. Copyright © 2018 American Chemical Society.
dc.publisherAmerican Chemical Society
dc.subjectanatase TiO 2
dc.subjectdisorder
dc.subjectelectron-phonon interaction
dc.subjectelectronic transport
dc.subjectlarge polaron
dc.subjectmagnetoresistance
dc.typeArticle
dc.contributor.departmentDEPT OF CHEMISTRY
dc.contributor.departmentDEPT OF ELECTRICAL & COMPUTER ENGG
dc.contributor.departmentDEPT OF MATERIALS SCIENCE & ENGINEERING
dc.contributor.departmentDEPT OF PHYSICS
dc.contributor.departmentNUS NANOSCIENCE & NANOTECH INITIATIVE
dc.contributor.departmentSINGAPORE SYNCHROTRON LIGHT SOURCE
dc.description.sourcetitleACS APPLIED MATERIALS & INTERFACES
dc.description.volume10
dc.description.issue44
dc.description.page38201 - 38208
dc.published.stateUnpublished
dc.grant.idNRF-CRP15-2015-01
dc.grant.fundingagencyNational Research Foundation
Appears in Collections:Elements
Staff Publications

Show simple item record
Files in This Item:
File Description SizeFormatAccess SettingsVersion 
Anatase TiO2 A Model System for Large Polaron Transport.pdf3.5 MBAdobe PDF

CLOSED

None

Google ScholarTM

Check


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.